There is a drinking game in Austin–how many times can Uber advertising for jobs at Uber avoid using the word “employer” when describing what is clearly a job at Uber and one for which the multinational non employer employer should be treated like every other employer? (Example: “side hustle” or “earning opportunity” gets you a Shiner every time.)

Sen. Mark Warner is hoping to push the federal government to tackle the difficult questions about how companies like Uber and Lyft are changing the nature of work — and, more specifically, the nature of benefits.

At issue: Many benefits are traditionally tied to your full-time employer. But with the rise of on-demand economy companies that rely on contractors, a growing share of the workforce is going to miss out on benefits like health insurance and retirement savings plans.